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Extraordinary Predation by the Neotropical Army Ant Cheliomyrmex andicola: Implications for the Evolution of the Army Ant Syndrome
Journal article   Peer reviewed

Extraordinary Predation by the Neotropical Army Ant Cheliomyrmex andicola: Implications for the Evolution of the Army Ant Syndrome

Sean O'Donnell, Michael Kaspari and John Lattke
Biotropica, v 37(4), pp 706-709
Dec 2005
DOI: https://doi.org/10.1111/j.1744-7429.2005.00091.x
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Ecuador mandibular modification Ecitoninae sting
Workers of the genus Cheliomyrmex are unique among the New world army ants (subfamily Ecitoninae) in that their mandibles are armed with elongate, spine-like teeth. We present the first prey records for this genus. Cheliomyrmex andicola prey on large-bodied ground dwelling invertebrates and, possibly, on vertebrates. Unlike other army ants, C. andicola workers use their sting during prey capture. The workers' unusual mandibles and potent stings may be adapted for piercing and gripping the integument of nonarthropod prey animals, and for rapidly subduing large-bodied prey, respectively. The genus Cheliomyrmex may be the sister taxon to other Neotropical army ants (Ecitoninae), and Cheliomyrmex shares features of mandibular morphology and prey selection with Old World driver ants in the genus Dorylus. Mass cooperative foraging, an important element of army ant behavior, may have arisen in part as an adaptation for exploiting large-bodied prey.

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24 citations in Web of Science
29 citations in Scopus

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Ecology
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